/*
 +-----------------------------------------------------------------------------------------------+
 | Project : UKAPI
 +-----------------------------------------------------------------------------------------------+
 | Project Description : Universal & Kernel API
 +-----------------------------------------------------------------------------------------------+
 | File Description :
 |   Semaphore
 |                                                 
 +-----------------------------------------------------------------------------------------------+
 | Licence : MIT Licence
 +-----------------------------------------------------------------------------------------------+
 | Copyright (c) 2006 Olivier Vanhoucke
 | 
 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 | and associated documentation files (the "Software"), to deal in the Software without 
 | restriction, including without limitation the rights to use, copy, modify, merge, publish, 
 | distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the 
 | Software is furnished to do so, subject to the following conditions:
 | 
 | The above copyright notice and this permission notice shall be included in all copies or 
 | substantial portions of the Software.
 | 
 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 | BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 +-----------------------------------------------------------------------------------------------+
*/

#ifndef __UKAPI_KERNEL_SEMAPHORE__
#define __UKAPI_KERNEL_SEMAPHORE__

typedef struct
{
#if		( CPU_ARCHITECTURE == CPU_ARCHITECTURE_WIN32 )
	HANDLE				semaphore;
#elif	( CPU_ARCHITECTURE == CPU_ARCHITECTURE_POSIX )
	pthread_semaphore_t	semaphore;
#else
	long_t				semaphore;		
#endif
	long_t				initial_count;
	long_t				maximum_count;
	string_unicode_t	name;
} semaphore_t, * psemaphore_t;

#ifdef __cplusplus
	extern "C" {
#endif /* __cplusplus */

result_t semaphore_create( psemaphore_t pSemaphore, long_t lInitialCount, long_t lMaximumCount, string_unicode_t sName );
result_t semaphore_give( psemaphore_t pSemaphore, long_t count );
result_t semaphore_take( psemaphore_t pSemaphore, timeout_t timeout );
result_t semaphore_destroy( psemaphore_t pSemaphore );

#ifdef __cplusplus
	}
#endif /* __cplusplus */

#endif /* __UKAPI_KERNEL_SEMAPHORE__ */